Wrench.



v PATENTED DEC. 8, 1903'. 0. s. LELAND.

WRENCH.

APPLICATION FILED MAR. 20, 1903.

130 MODEL.

, inafter.

"UNITED. 1 STATES Patented December 8, 1903.

CHARLES S. LELAND, OF MOUNT DESERT, MAINE.

WRENCH. A

SPECIFICATION formingpari; of Letters Patent N0. 746,113, dated December8, 1903.

Application filed March 20, 1903.

To all'whom it may concern.-

Be it known that 1, CHARLES S. LELAND, a citizen of the United States,residing at Mount Desert, in the county of Hancock and State of Maine,have invented certain new and useful Improvements in Wrenches, of whichthe following is a specification.

The purpose of this invention is to provide a novel form of wrench whichmay be very conveniently manipulated because of the peculiar meansemployed for adjusting the jaws in their relative positions, by whichclosure of the same upon an article may be greatly facilitated andlocking of the jaws permitted almost instantaneously. Other im portantdesiderata are also attained to, and these will become apparent as thedescription of the invention continues. 7

For a full description of the invention and the merits thereof and alsoto acquire aknowledge of the details of construction of the means foreifectingthe result reference is to be had to the following descriptionhereto attached.

While the essential and characteristic features of the invention aresusceptible of modification, still the preferred embodiment of theinvention is illustrated in the accompanying drawings, in which- Figure1 is a side elevation in which the bandle is shown in section. Fig. 2 isa perspective view of the shank, the handle removed and thefriction-disk detached and shown to one side. Fig. 3 is a bottom planview, the handle being in section. v

Corresponding and like parts are referred to in the followingdescription and indicated inall the views of the drawings by the samereference characters.

The wrench consists of three essential elements 1, 2, and 3, consistingof a fixed jaw, a movable jaw, and a revoluble handle, respectively.Theshank 4 of thewrench is provided with a threaded end 5, by whichhandle 3 is held in its. position upon said shank. The shank is alsoprovided intermediate its ends with an enlarged portion 6, the purposeof which will more fully appear here- A sleeve7 "is 'rotatably mountedupon the end of the shank 4,- being held in place by a bur 8'orlothersuitable means. The bur 8 is rigidly heldiin'its position upon the shankby a transverse locking-pin 9. The

Serial No. 148,751- (No model.)

Extending from the movable jaw 2 imparts a rotary motion to the saidsleeve 7; v

and it is the object of the invention to provide means for locking thesleeve from rotation and by so doing fix the movable jaw at anyascertained adjustment upon the shank 4 and with relation to the fixedjaw lot the wrench. For the above purpose the head 11 is disposed uponthe sleeve, as before mentioned, and means areprovided which cooperateby friction'contact with the head 11, by

which the sleeve 7 is prevented from rotation andthe movable jaw lockedfrom longitudinal movement upon the shank; Thebur 8, which holds thesleeve upon the shank 4, cooperates with a fricton-disk 14 to preventrotation of the latter, said disk being provided with a recessl5'tocorrespond to the form of the bur8 and in which thesaid bur Sis seatedwhen the parts are arranged in their normal relative positions. Thefriction-disk 14 is normally held out of contact with the head 11 of thesleeve 7 by a coil-spring 16, seated in the recess 15 and interposedbetween the disk and the head 11. The revoluble handle 3 is attachedtothe shank through the medium of the threaded end 5, as above premised,and is adapted to obtain a longitudinal movement upon the said shank.The inner surface of the screw end 17 of the handle bears against thefriction-disk 14, and revolving ofthe handle to impart to same alongitudinal movement v16 to throw the friction-disk out of contact,

with the head 11, and this'permits of adjust- .ment of the movablejaw tothe extent desired relative to its position with regard to the fixedjaw, since pressure exercised upon Y gaging means between the movablejaw and the movable jaw to cause same to move either toward or from thefixed jaw will merely cause rotation of the sleeve 7. The jaws beingclosed upon the object, the handle may be given a turn or two to screwit farther upon the threaded end of the shank, and this will cause thefriction-disk 14 to close against the head 11 in a manner which has beenabove clearly set forth, and owing to the fact that no rotary movementcan be imparted to the sleeve the movable jaw will necessarily be lookedat the desired adjustment.

It will be seen that if the revoluble handle be unscrewed to such anextent only as to permit the friction-disk to be barely out of contactwith the head 11 the jaw may be almost instantaneously locked by a quickrotary movement of the handle in the proper direction, and this isdeemed an important advantage, since it is essential that the jaws maybe quickly locked in a desired position as soon as they reach thisdesired position. The result desired is attained by themechanicalarrangement of elements as set forth in the implement embodying thisinvention.

It is to be understood that I am not to be restricted to the exact formof parts as illustratedfor instance, the bur 8 may be modifled to be anyinterlocking means which will hold the sleeve 7 upon the shank 4 andwhich will also be adapted, in the particular contemplation of thedevice, to hold the frictiondisk from rotation.

Other various features of the wrench relative to the structure of theelemental parts may be changed in a manner included within the spirit ofthe invention and the scope of the appended claims.

Having thus described the invention, what is claimed as new is- 1. In awrench, and in combination with fixed and movable jaws, a shank, asleeve rotatably mounted upon the said shank and provided with a spiralguide, engaging means between the said spiral guide and the movable jaw,a revoluble handle adapted to cooperate With the said sleeve to preventrotation thereof, whereby the movable jaw is fixed at any relativeadjustment, substantially as described.

2. In a wrench, and in combination with fixed and movable jaws, a shank,a sleeve rotatably mounted upon the said shank and provided with aspiral guide, engaging means between the said spiral guide and themovable jaw, anda revoluble handle adapted for longitudinal movementupon the shank, and to cooperate with the sleeve to lock same fromrotation, substantially as described.

3. In a wrench, and in combination, a fixed jaw having a shank extendingtherefrom, a movable jaw disposed upon the said shank, a sleeverotatably mounted upon the end of the shank and provided with a spiralguide, en-

the spiral guide, a friction-disk disposed upon the said shank andadapted to cooperate with the aforesaid sleeve to prevent rotationthereof, and a revoluble handle mounted upon the said shank and adaptedto actuate the friction-disk whereby the movable jaw is fixed at anyrelative adjustment upon the shank, substantially as described.

4. In a wrench, and in combination, a fixed jaw having a shank extendingtherefrom, a movable jaw,a sleeve rotatably mounted upon the shank andprovided with a spiral guide, a friction-disk disposed upon the saidshank and adapted to cooperate with the said sleeve, means forpreventing rotation of the frictiondisk, and means for normally holdingthe said friction-disk away from the sleeve, and a revoluble handledisposed upon the shank and adapted for actuation of the frictiondisk,whereby the sleeve is locked from rotation, substantially as described.

5. In a wrench, and in combination, a fixed jaw having a shank extendingtherefrom, a movable jaw provided with a stem and adapted forlongitudinal movement upon the said shank, a rotatable sleeve mountedupon the shank and provided with a spiral groove, interlocking meansbetween the stem of the movable jaw and the said groove, a frictiondiskdisposed upon the shank and adapted to cooperate with the sleeve toprevent rotation thereof, means for normally holding the friction diskfrom engagement with the sleeve, and a revoluble handle adapted forlongitudinal adjustment of the shank and actuation of the friction-disk,substantially as described.

6. In a wrench, and in combination, a fixed jaw having a shank extendingtherefrom, a movable jaw provided with a stem, a sleeve rotatablymounted upon the shank and provided with a spiral groove, a lug extendedfrom the end of the stem of the movable jaw into the path of the saidgroove, a head disposed upon the end of the sleeve, a frictiondiskdisposed upon the aforesaid shank and means for preventing rotation ofsaid disk, a spring interposed between the head and friction-disk tonormally hold the latter from engagement with said head, and a revolublehandle located upon the shank and adapted for a relative longitudinalmovement with reference thereto,-said handle being further adapted tobear against the friction-disk to throw same into engagement with thehead of the rotatable sleeve, whereby the movable jaw is locked in anyrelative adjustment upon the shank, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES S. LELAND.

